The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
Antonia Sherlânea Chaves Véras, Sebastião de Campos Valadares Filho, José Fernando Coelho da Silva, Mário Fonseca Paulino, Paulo Roberto Cecon, Marcelo de Andrade Ferreira, [...]
01/Jun/2001
Antonia Sherlânea Chaves Véras, Sebastião de Campos Valadares Filho, José Fernando Coelho da Silva, Mário Fonseca Paulino, Paulo Roberto Cecon, Marcelo de Andrade Ferreira, [...]
DOI: 10.1590/S1516-35982001000300040
This work was carried out to estimate the efficiency of metabolizable energy utilization (EMEU) for maintenance (km) and weight gain (kf) and the requirements of metabolizable energy (ME) and total digestible nutrients (TDN) of Nellore bulls. Thirty-five animals, averaging 330 kg and 20 months old, were used. After the period of adaptation (40 days), five animals were slaughtered as reference. The remaining animals were allotted, in a completely randomized design, to the treatments (12.5, 25.0, 37.5, 50.0, 62.5, and 75.0% […]
Keywords: concentrate; efficiency; metabolizable energy, total digestible nutrients